<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>520</title>
		<style>
			/*选择器{样式1;样式2;}*/
			div{text-align: center;}
			span{color: cornflowerblue;}
		</style>
	</head>
	<body>
		<div style="background-color: aquamarine; color: darkgoldenrod;" >我是1</div>
		<div>我是2</div>
		<div>我是3</div>
		<div>我是4</div>
		
		<span>我是1</span>
		<span>我是2</span>
		<span>我是3</span>
	</body>
</html>
